linux-kernel - Re: [PATCH 08/10] psi: pressure stall information for CPU, memory, and IO

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20180718220006.GC2838@cmpxchg.org>
Date:   Wed, 18 Jul 2018 18:00:06 -0400
From:   Johannes Weiner <hannes@...xchg.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Tejun Heo <tj@...nel.org>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Vinayak Menon <vinmenon@...eaurora.org>,
        Christopher Lameter <cl@...ux.com>,
        Mike Galbraith <efault@....de>,
        Shakeel Butt <shakeelb@...gle.com>, linux-mm@...ck.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...com
Subject: Re: [PATCH 08/10] psi: pressure stall information for CPU, memory,
 and IO

On Tue, Jul 17, 2018 at 04:16:14PM +0200, Peter Zijlstra wrote:
> On Thu, Jul 12, 2018 at 01:29:40PM -0400, Johannes Weiner wrote:
> > +/* Tracked task states */
> > +enum psi_task_count {
> > +	NR_RUNNING,
> > +	NR_IOWAIT,
> > +	NR_MEMSTALL,
> > +	NR_PSI_TASK_COUNTS,
> > +};
> 
> > +/* Resources that workloads could be stalled on */
> > +enum psi_res {
> > +	PSI_CPU,
> > +	PSI_MEM,
> > +	PSI_IO,
> > +	NR_PSI_RESOURCES,
> > +};
> 
> These two have mem and iowait in different order. It really doesn't
> matter, but my brain stumbled.

No problem, I swapped them around for v3.